Rescuers in Soma, Turkey, are fighting to reach trapped miners after a power explosion set off a fire yesterday, which is still blazing today.
The death toll currently stands at 232.
More than 200 workers are still thought to be underground, while more than 360 have been saved by a rescue team reaching into the hundreds.
Staff at the mine had been trained to use gas masks in the event of an explosion, assuming that they would not need the masks for more than 45 minutes.